Home / 842,167,621.58-1,162,113,324.71-465,816,109.19

Finding the Fourth Proportional to 842,167,621.58, 1,162,113,324.71 and 465,816,109.19

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Solution

The fourth proportional to 842,167,621.58, 1,162,113,324.71 and 465,816,109.19 is: 642,783,091.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,167,621.58 : 1,162,113,324.71 = 465,816,109.19 : x
  2. Step 2: Convert to fraction form
    842,167,621.58/1,162,113,324.71 = 465,816,109.19/x
  3. Step 3: Cross multiply
    842,167,621.58x = 1,162,113,324.71 × 465,816,109.19
  4. Step 4: Simplify right side
    842,167,621.58x = 541,331,107,350,709,056
  5. Step 5: Solve for x
    x = 541,331,107,350,709,056/842,167,621.58
  6. Step 6: Final answer
    x = 642,783,091.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.